Features: Experience precise speed controlling with PWMSpeed Controllers Brushless DCMotor Driver Board. This regulator board features a working voltages ranges of 8 24V and an output PWMfrequency of approximately 18KHZ, allowing for smooth and efficient motor operation. Designed for DIY enthusiasts and professionals alike, this module is perfect for those looking to optimized their brushless motor performances. Whether you're building a RCcar, or industrial machinerys, this governor module provides reliable speed regulation and direction control. Upgrades your motor control capabilities with PWMSpeed Controllers Brushless DCMotor Driver Board and unleash the full potential of your projects. Specifications: Material: Plastic Size: As Shown In The Picture working voltage: DC8-24V output: 5V PWMfrequency:18KHZ duty cycle: 0-100 Package Includes: 1x Speed Controllers note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.